Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung dao danh slippers" » "duong dao danh slippers", "dung dat danh slippers", "dong dao danh slippers", "dung dao doanh slippers", "dung do danh slippers", "dung dao dan slippers", "dung dao danh slippery", "dung dao danh grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung dao danh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dao danh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dao danh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dao danh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.